Ms. Cathy Zhai reports

MONUMENT ANNOUNCES COMMENCEMENT OF EXPANSION DRILLING PROGRAM AT SELINSING GOLD MINE

Monument Mining Ltd. has commenced its expansion drilling program at the Selinsing gold mine, including Selinsing and Buffalo Reef gold properties, located in Pahang state on the Central gold belt of Western Malaysia.

Cathy Zhai, president and chief executive officer of Monument Mining, commented:

"We are pleased to see the market respond positively to our disciplined business approach. Monument's growth is anchored in sustainable gold inventory and supported by free cash flow, which enables us to reinvest into resource replacement and expansion. This approach has effectively mitigated mining risks and minimized shareholder dilution. Commencement of exploration programs are critical under this approach to extend the life of mine (LoM) in our Malaysia operations."

A mine expansion study has been undertaken by Snowden without current spatial constraints, such as lease boundaries and existing infrastructure limitations. This exercise is designed to test areas beyond the current LoM (life of mine) plan that exhibit reasonable potential for resource discovery upon drilling. The outcome of the study will also serve as a guide for the mine expansion drill program, functioning as conceptual Blue Sky targets for future drill program design. A rationalized tiered approach has been proposed to prioritize the target areas.

Mine expansion strategy

The mine expansion drilling program targets the delineation of new mineralized zones beyond the current production pit shells (the mine expansion areas), laying the foundation for an updated LoM. It is anticipated that successful confirmation of the expected mineralization in the mine expansion areas will allow future pit designs to include most of the current mineral resources outside the current pit shells.

The mine expansion drilling program aims, through aggressive exploration drilling, to discover new mineral resources with subsequent conversion of those resources to reserves. The initial drilling plan is currently under review with a cash commitment of $2.5-million (U.S.), targeting completion by the end of March, 2026.

The most recent feasibility study ("Selinsing Gold Sulphide Project -- NI 43-101 Technical Report" SEDAR+ filed Jan. 31, 2019) outlines total resources of 16.1 million tonnes at 1.6 grams per tonne Au for 836,000 ounces of gold, supporting a five-year life of mine with a 4.9-million-tonne reserve at an average grade of 1.6 g/t Au containing 249,000 ounces of gold. The gold sulphide project has been in production since 2023.

Of these totals, resources of 525,000 ounces of gold at 1.64 g/t are located outside the current pit shells -- comprising 316,000 ounces of gold at 1.64 g/t in the Selinsing gold areas and 209,000 ounces of gold at 1.64 g/t in the Buffalo Reef and Felda zones. Additional land acquisition will be required to convert those ounces to reserves, particularly to the south and east of the current Selinsing/Buffalo Reef tenement boundaries.

Monument expects confirmation of a potentially significant exploration upside. The detailed initial drilling program will be announced once finalized.

Program scope and budget

With an initial investment of $2.5-million (U.S.), the expansion program is scheduled for completion by the end of March, 2026. The campaign includes aggressive extensional drilling to discover new mineral resources and the subsequent upgrade of an expanded mineral resource base to mining reserves.

The program will:

• Test underexplored structural targets;
• Gather geotechnical data to support future open-pit and underground development;
• Advance geological interpretation and pit design through detailed core logging.

Key target areas

Buffalo Reef/Felda Block 7

The Buffalo Reef remains open at depth, particularly in its central and southern zones. Updated structural modelling suggests a steepening of the mineralized body, enhancing the potential for expansion.

Drilling gaps between current pits (BRC2, BRC3, BRC4, BRN) suggest further potential for shallow mineralization, directly supporting near-term, open-pit extension planning. The grade control information and additional drilling (post-2016 mineral resource estimate (MRE)) have highlighted strong mineralization in the gap areas, hosted within the same shear zone structure.

Selinsing gold

At Selinsing pit, the southernmost zone shows a thick mineralized envelope that remains open at depth and along northeast-southwest structural trends.

In-pit geological mapping supports the updated interpretation of a better-defined mineralization trend, indicating that the Selinsing orebody remains open along strike. Previous drilling at the southern and northern ends of Selinsing pit 4 did not optimally test mineralization extensions due to poorly positioned drill holes relative to the orientation of the orebody.

Drilling readiness

Monument's in-house drilling team has been reassembled for this work, supported by two refurbished Desco SP 6500SA rigs (350-metre depth capacity). One rig will be outfitted with a multipurpose drill head, allowing it to switch between reverse circulation (RC) and diamond drilling.

• Planned holes will initiate with RC precollars followed by diamond coring through target zones.
• Samples will be analyzed at internationally accredited laboratories.
• QA/QC (quality assurance/quality control) protocols follow industry standards to ensure reliable, accurate results.

Geotechnical and structural logging

Detailed geological and structural logging will provide data for:

• Slope stability analysis for pit optimization;
• Rock mass classification for underground planning;
• Refinement of mineralization models.

Qualified person's statement

The scientific and technical information in this press release has been reviewed and approved by Matthew Ridgway, BSc (honours), MSc, MBA, MAIG, chief managing geologist and a qualified person as defined by National Instrument 43-101.

About Monument Mining Ltd.

Monument Mining is an established Canadian gold producer that 100-per-cent owns and operates the Selinsing gold mine in Malaysia and the Murchison gold project in the Murchison area of Western Australia. It has 20-per-cent interest in Tuckanarra gold project, jointly owned by Odyssey Gold Ltd. in the same region. The company employs approximately 270 people in both regions and is committed to sustainability with practice of the high standards of environmental management, social responsibility, including health and safety for its employees and neighbouring communities, and good corporate governance.

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